Vacuum fill system
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United States of America Patent
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-
Sep 14, 1993
Issued Date -
N/A
app pub date -
Aug 20, 1992
filing date -
Sep 15, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vacuum fill system for continuously deaerating and compacting flowable materials for transportation and storage in containers includes a first rotatable chamber valve for receiving the flowable materials. Attached to the rotatable chamber valve is a fixed position chamber connected to a vacuum source for receiving the flowable materials from the first rotatable chamber and for deaerating the flowable materials. The fixed position chamber is in turn connected to a second rotatable chamber valve for receiving the deaerated flowable materials from the fixed position chamber, maintaining the materials in a vacuum, then returning the materials to atmospheric pressure substantially instantaneously as the valve rotates to compact the deaerated materials into a substantially solid mass. A compressed air source is connected to the second rotatable chamber valve for injecting compressed air into the valve to force the substantially solid mass of compacted deaerated materials into a container positioned adjacent thereto.
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